CN216382590U - Sealing structure of pneumatic angle seat valve - Google Patents
Sealing structure of pneumatic angle seat valve Download PDFInfo
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- CN216382590U CN216382590U CN202122930510.7U CN202122930510U CN216382590U CN 216382590 U CN216382590 U CN 216382590U CN 202122930510 U CN202122930510 U CN 202122930510U CN 216382590 U CN216382590 U CN 216382590U
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Abstract
The utility model relates to the technical field of pneumatic angle seat valves, in particular to a sealing structure of a pneumatic angle seat valve, which comprises an air cylinder, wherein a connecting cylinder is arranged on the surface of the air cylinder, a valve body is arranged on the surface of the connecting cylinder, a first connecting disc is arranged on the inner wall of the valve body, a circular groove is formed in the first connecting disc, and a first sealing ring is arranged on the inner wall of the circular groove. This scheme passes through the effect of the elastic block that case surface set up, can avoid the impact of case motion in-process impaired, through first seal cover, the cooperation of second seal cover isotructure is used, can guarantee that the case is under the closure state, effective leakproofness to the valve body, and improve the withstand voltage of case, sealing performance, and the setting of second seal ring, can avoid fluidic excessive problem, through shifting up of valve rod, can drive third sealing ring and first sealing ring contact, make the case be in under the open mode, avoid fluidic excessive problem.
Description
Technical Field
The utility model relates to the technical field of pneumatic angle seat valves, in particular to a sealing structure of a pneumatic angle seat valve.
Background
The pneumatic angle seat valve is widely applied to short-time frequent starting, has the characteristics of sensitive reaction and accurate action, is matched with an electromagnetic valve for use, and can control the flow of gas and liquid by pneumatic control. Can realize the requirements of accurate temperature control, liquid dripping and the like, and is widely applied to the industries of air separators (hydrogen production, nitrogen, oxygen and the like), high-temperature sterilization pots, dyeing and finishing and the like. However, the existing pneumatic angle seat valve has certain defects, has no good sealing performance, and can cause the problems of overflow, leakage and the like of fluid under the opening and closing states of the valve core.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a sealing structure of a pneumatic angle seat valve.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a seal structure of pneumatic angle seat valve, includes the cylinder, the surface of cylinder is provided with the connecting cylinder, the surface of connecting cylinder is provided with the valve body, first flange is installed to the inner wall of valve body, the circular slot has been seted up to the inside of first flange, first sealing ring is installed to the inner wall of circular slot, the round hole has been seted up to the inner wall of circular slot, the second sealing ring is installed to the inner wall of round hole, the inner wall slidable mounting of second sealing ring has the valve rod, the surface mounting of valve rod has the case, the surface mounting of case has the withstand voltage cover, the surface mounting of withstand voltage cover has first seal cover, the second connection pad is installed to the inner wall of valve body, the through-hole has been seted up on the surface of second connection pad.
Preferably, the surface of the valve rod is provided with a third sealing ring, and the side edge of the third sealing ring is in an arc shape.
Preferably, the surface of the valve core is provided with an elastic block, and the elastic block is contacted with the inner wall of the valve body.
Preferably, the whole through hole is designed in a trapezoidal form, and the inner diameter of an opening of the through hole is larger than the outer diameter of the valve core.
Preferably, a second sealing sleeve is installed on the inner wall of the through hole, and the second sealing sleeve is in contact with the first sealing sleeve.
Preferably, the inner wall of the through hole is symmetrically provided with supporting blocks, and the supporting blocks are in contact with the second sealing sleeve.
The utility model has the beneficial effects that: this scheme passes through the effect of the elastic block that case surface set up, can avoid the impact of case motion in-process impaired, through first seal cover, the cooperation of second seal cover isotructure is used, can guarantee that the case is under the closure state, effective leakproofness to the valve body, and improve the withstand voltage of case, sealing performance, and the setting of second seal ring, can avoid fluidic excessive problem, through shifting up of valve rod, can drive third sealing ring and first sealing ring contact, make the case be in under the open mode, avoid fluidic excessive problem.
Drawings
Fig. 1 is a schematic overall structural diagram of a sealing structure of a pneumatic angle seat valve according to the present invention;
FIG. 2 is a schematic structural view of a front cross section of the valve body of FIG. 1 illustrating a sealing structure of a pneumatic angle seat valve according to the present invention;
FIG. 3 is an enlarged view at A of FIG. 2 of a sealing structure of a pneumatic angle seat valve in accordance with the present invention;
fig. 4 is an enlarged view of the sealing structure of the pneumatic angle seat valve at B of fig. 2.
In the figure: 1. a cylinder; 2. a connecting cylinder; 3. a valve body; 4. a first splice tray; 5. a circular groove; 6. a first seal ring; 7. a circular hole; 8. a second seal ring; 9. a valve stem; 10. a third seal ring; 11. a valve core; 12. an elastic block; 13. a pressure-resistant sleeve; 14. a first seal cartridge; 15. a second connecting disc; 16. a through hole; 17. a second seal cartridge; 18. and (7) a supporting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a sealing structure of a pneumatic angle seat valve comprises a cylinder 1, a connecting cylinder 2 is arranged on the surface of the cylinder 1, a valve body 3 is arranged on the surface of the connecting cylinder 2, a first connecting disc 4 is installed on the inner wall of the valve body 3, a circular groove 5 is formed in the first connecting disc 4, a first sealing ring 6 is installed on the inner wall of the circular groove 5, a circular hole 7 is formed in the inner wall of the circular groove 5, a second sealing ring 8 is installed on the inner wall of the circular hole 7, a valve rod 9 is installed on the inner wall of the second sealing ring 8 in a sliding mode, a valve core 11 is installed on the surface of the valve rod 9, a pressure-resistant sleeve 13 is installed on the surface of the valve core 11, a first sealing sleeve 14 is installed on the surface of the pressure-resistant sleeve 13, a second connecting disc 15 is installed on the inner wall of the valve body 3, and a through hole 16 is formed in the surface of the second connecting disc 15.
This scheme passes through the effect of the elastic block 12 that the case 11 surface set up, can avoid the impact of case 11 motion in-process impaired, through first seal cover 14, the cooperation of structures such as second seal cover 17 is used, can guarantee that case 11 is under the closure state, effective leakproofness to valve body 3, and improve the withstand voltage of case 11, sealing performance, and the setting of second sealing ring 8, can avoid fluidic excessive problem, through shifting up of valve rod 9, can drive third sealing ring 10 and the contact of first sealing ring 6, make case 11 be under the open mode, avoid fluidic excessive problem.
In this embodiment, the surface of the valve rod 9 is provided with a third sealing ring 10, and the side edge of the third sealing ring 10 is in an arc shape. Through the setting of third sealing ring 10, when being convenient for follow-up valve rod 9 shifts up, can drive mutual extrudability between third sealing ring 10 and the first sealing ring 6 sealed, avoid fluidic excessive problem, and the side of third sealing ring 10 designs into the arc form for third sealing ring 10 can effectively extrude first sealing ring 6.
In this embodiment, the surface of the valve core 11 is provided with an elastic block 12, and the elastic block 12 contacts with the inner wall of the valve body 3. Through the arrangement of the elastic block 12, the problem of impact damage between the valve core 11 and the inner wall of the valve body 3 in the motion process can be avoided.
In this embodiment, the entire through hole 16 is designed in a trapezoidal shape, and the inner diameter of the opening of the through hole 16 is larger than the outer diameter of the valve element 11. Due to the trapezoidal shape of the through hole 16, a subsequent compression seal between the first sealing sleeve 14 and the second sealing sleeve 17 can be performed.
In this embodiment, a second sealing sleeve 17 is installed on the inner wall of the through hole 16, and the second sealing sleeve 17 is in contact with the first sealing sleeve 14. The sealing effect of the valve core 11 can be improved by the matching use of the second sealing sleeve 17 and the first sealing sleeve 14.
In this embodiment, the inner wall of the through hole 16 is symmetrically provided with supporting blocks 18, and the supporting blocks 18 are in contact with the second sealing sleeve 17. Through the setting of supporting shoe 18, can carry out powerful support to second seal cover 17, avoid the displacement problem that the permanent impact of case 11 caused.
The specific implementation process of the utility model is as follows: when the pneumatic angle seat valve needs to be used, the valve rod 9 drives the valve core 11 to move downwards, so that the valve core 11 is in contact with the inner wall of the valve body 3, the elastic block 12 arranged on the surface of the valve core 11 can prevent the valve core 11 from being damaged by impact in the movement process, the valve core 11 enters the through hole 16, the first sealing sleeve 14 is in extrusion contact with the second sealing sleeve 17, the valve core 11 can be ensured to be effectively sealed on the valve body 3 in a closed state, the pressure resistance performance of the valve core 11 is improved under the action of the pressure-resistant sleeve 13, the second sealing ring 8 can prevent the overflow problem of fluid, the valve rod 9 drives the valve core 11 to move upwards, the third sealing ring 10 is in extrusion contact with the first sealing ring 6, and the valve core 11 can be prevented from overflowing when being in an open state.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The sealing structure of the pneumatic angle seat valve comprises a cylinder (1) and is characterized in that a connecting cylinder (2) is arranged on the surface of the cylinder (1), a valve body (3) is arranged on the surface of the connecting cylinder (2), a first connecting disc (4) is installed on the inner wall of the valve body (3), a circular groove (5) is formed in the first connecting disc (4), a first sealing ring (6) is installed on the inner wall of the circular groove (5), a circular hole (7) is formed in the inner wall of the circular groove (5), a second sealing ring (8) is installed on the inner wall of the circular hole (7), a valve rod (9) is installed on the inner wall of the second sealing ring (8) in a sliding mode, a valve core (11) is installed on the surface of the valve rod (9), a pressure-resistant sleeve (13) is installed on the surface of the valve core (11), a first sealing sleeve (14) is installed on the surface of the pressure-resistant sleeve (13), and a second connecting disc (15) is installed on the inner wall of the valve body (3), and a through hole (16) is formed in the surface of the second connecting disc (15).
2. A sealing structure of a pneumatic angle seat valve according to claim 1, characterized in that the surface of the valve rod (9) is provided with a third sealing ring (10), and the side edge of the third sealing ring (10) is in an arc shape.
3. A sealing structure of a pneumatic angle seat valve according to claim 1, characterized in that the surface of the valve core (11) is provided with an elastic block (12), and the elastic block (12) is contacted with the inner wall of the valve body (3).
4. A sealing structure of a pneumatic angle seat valve according to claim 1, characterized in that the whole of the through hole (16) is designed in a trapezoidal form, and the inner diameter of the opening of the through hole (16) is larger than the outer diameter of the valve core (11).
5. A sealing structure of a pneumatic angle seat valve according to claim 1, characterized in that the inner wall of the through hole (16) is provided with a second sealing sleeve (17), and the second sealing sleeve (17) is in contact with the first sealing sleeve (14).
6. A sealing structure of a pneumatic angle seat valve according to claim 1, characterized in that the inner wall of the through hole (16) is symmetrically provided with supporting blocks (18), and the supporting blocks (18) are in contact with the second sealing sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930510.7U CN216382590U (en) | 2021-11-26 | 2021-11-26 | Sealing structure of pneumatic angle seat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930510.7U CN216382590U (en) | 2021-11-26 | 2021-11-26 | Sealing structure of pneumatic angle seat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382590U true CN216382590U (en) | 2022-04-26 |
Family
ID=81218451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122930510.7U Active CN216382590U (en) | 2021-11-26 | 2021-11-26 | Sealing structure of pneumatic angle seat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382590U (en) |
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2021
- 2021-11-26 CN CN202122930510.7U patent/CN216382590U/en active Active
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